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Title:EVERY ENGINE SENSOR EXPLAINED - MAF, MAP, IAT, TPS, 02, NOx, EGT - How it works, location, OBD2 code
Duration:26:22
Viewed:2,308,591
Published:08-08-2021
Source:Youtube

AEM SS MAP sensors: bit.ly/d4a-map-sensors AEM wideband: bit.ly/D4Axserieswb AEM IAT: bit.ly/D4A-iat-sensors AEM FLUID TEMP: bit.ly/D4A-fluid-temp-sensors AEM EGT: bit.ly/D4A-egt-sensors 00:00 Intro 00:57 Crankshaft position sensor 02:54 Camshaft position sensor 03:58 Throttle position sensor TPS 05:44 Mass air flow sensor MAF 07:39 Vane air flow meter AFM 08:44 Manifold absolute pressure sensor MAP 10:27 Oil pressure sensor 11:55 Fuel pressure sensor 12:34 Intake air temperature sensor IAT 14:09 Coolant temperature sensor 15:22 Fuel temperature sensor 16:16 Oil temperature sensor 17:24 Oxygen 02 sensor 20:18 Exhaust gas temperature sensor EGT 22:05 Nitrogen oxide sensor NOx 23:01 Knock sensor 24:07 Quick recap of key sensors 25:53 Outro In this video we're explaining every single car engine sensor. For each sensor we'll be explaining what it does, how does it do it, where is the sensor location and what happens if the sensor goes bad. There's also OBD2 error codes for all the sensors. Stuff like P0335, P0118, P0131, P0340, P0300, P0102, P0113. So the next time you have a problem with one of your sensors you will know what's happening, why is it happening, where is the sensor and what will happen if you don't fix it. To make the video as simple and as logical I have grouped the sensor into 5 categories. 1. Position sensors (crankshaft position sensor, camshaft position sensor, throttle position sensor) 2. Air flow sensors (mass air flow sensor MAF, vane air flow meter) 3. Pressure sensors (MAP or manifold absolute pressure sensor, oil pressure sensor, fuel pressure sensor) 4. Temperature sensors (IAT or intake air temperature sensor, coolant temperature sensor, fuel temperature sensor, oil temperature sensor) 5. Air fuel ratios, emissions and others (oxygen 02 sensor both wide band and narrow band, egt or exhaust gas temperature sensor, nitrogen oxide or nox sensor for SCR selective catalyst reduction and the knock sensor) We'll see how each sensor communicated with the ECU and how each sensor is a piece of the puzzle. When they all work together correctly the ECU gets to see the big picture and accurately and efficiently manage the operation of the engine. For example the crankshaft position sensor tells the ECU where the piston is so the ECU knows WHEN to inject the fuel. Air flow sensors like the Mass air flow sensor or the map sensor tell the ECU how much air is coming into the engine so the ECU knows HOW MUCH fuel to inject. The throttle position sensor and the intake air temperature sensor tell the ECU the load placed on the engine and the intake air temp which further improves the accuracy of the injection. The final stream of information necessary for injection accuracy comes from the fuel pressure sensor which lets the ECU calculate exactly how long it needs to keep the injectors open in order to deliver the precise quantity of fuel needed. In case something does go wrong we have the life saver sensors like the knock or oil pressure sensors. The knock sensor listens for knock or abnormal combustion and if it detects it it warns the ECU and the ECU in a matter of milliseconds retards ignition timing and/or adds fuel to prevent knock from occurring again. The oil pressure and oil temperature sensors make sure that the engine oil, the lifeblood of the engine, is within functional parameters. As soon as it even briefly drifts out of expected values the ECU can protect the engine and warn the driver. All in all modern cars are a moving world of information where a large number of sensors rapidly provides endless amounts of data that gets interpreted at lightning speeds by the ECU where it triggers a sea of different actions that keep you moving smoothly and safely along the road all while preserving efficiency and minimizing emissions. A special thank you to my patrons: Daniel Peter Della Flora Daniel Morgan William Richard Caldwell Pepe Brian Durning Brian Alvarez D4A merch: d4a-store.creator-spring.com/?utm_medium=product_s…... Patreon: www.patreon.com/d4a​ #d4a #enginebootcamp

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